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Title: Compact beam transport system for free-electron lasers driven by a laser plasma accelerator

Abstract

Utilizing laser-driven plasma accelerators (LPAs) as a high-quality electron beam source is a promising approach to significantly downsize the x-ray free-electron laser (XFEL) facility. A multi-GeV LPA beam can be generated in several-centimeter acceleration distance, with a high peak current and a low transverse emittance, which will considerably benefit a compact FEL design. However, the large initial angular divergence and energy spread make it challenging to transport the beam and realize FEL radiation. In this paper, a novel design of beam transport system is proposed to maintain the superior features of the LPA beam and a transverse gradient undulator (TGU) is also adopted as an effective energy spread compensator to generate high-brilliance FEL radiation. As a result, theoretical analysis and numerical simulations are presented based on a demonstration experiment with an electron energy of 380 MeV and a radiation wavelength of 30 nm.

Authors:
 [1];  [2];  [2];  [3]
  1. Chinese Academy of Sciences, Shanghai (China); Univ. of Chinese Academy of Sciences, Beijing (China); SLAC National Accelerator Lab., Menlo Park, CA (United States)
  2. Chinese Academy of Sciences, Shanghai (China)
  3. SLAC National Accelerator Lab., Menlo Park, CA (United States)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1369473
Grant/Contract Number:  
AC02-76SF00515; 2016YFA0401900; 11127901; PHY-1535215
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Accelerators and Beams
Additional Journal Information:
Journal Volume: 20; Journal Issue: 2; Journal ID: ISSN 2469-9888
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS

Citation Formats

Liu, Tao, Zhang, Tong, Wang, Dong, and Huang, Zhirong. Compact beam transport system for free-electron lasers driven by a laser plasma accelerator. United States: N. p., 2017. Web. doi:10.1103/PhysRevAccelBeams.20.020701.
Liu, Tao, Zhang, Tong, Wang, Dong, & Huang, Zhirong. Compact beam transport system for free-electron lasers driven by a laser plasma accelerator. United States. https://doi.org/10.1103/PhysRevAccelBeams.20.020701
Liu, Tao, Zhang, Tong, Wang, Dong, and Huang, Zhirong. Wed . "Compact beam transport system for free-electron lasers driven by a laser plasma accelerator". United States. https://doi.org/10.1103/PhysRevAccelBeams.20.020701. https://www.osti.gov/servlets/purl/1369473.
@article{osti_1369473,
title = {Compact beam transport system for free-electron lasers driven by a laser plasma accelerator},
author = {Liu, Tao and Zhang, Tong and Wang, Dong and Huang, Zhirong},
abstractNote = {Utilizing laser-driven plasma accelerators (LPAs) as a high-quality electron beam source is a promising approach to significantly downsize the x-ray free-electron laser (XFEL) facility. A multi-GeV LPA beam can be generated in several-centimeter acceleration distance, with a high peak current and a low transverse emittance, which will considerably benefit a compact FEL design. However, the large initial angular divergence and energy spread make it challenging to transport the beam and realize FEL radiation. In this paper, a novel design of beam transport system is proposed to maintain the superior features of the LPA beam and a transverse gradient undulator (TGU) is also adopted as an effective energy spread compensator to generate high-brilliance FEL radiation. As a result, theoretical analysis and numerical simulations are presented based on a demonstration experiment with an electron energy of 380 MeV and a radiation wavelength of 30 nm.},
doi = {10.1103/PhysRevAccelBeams.20.020701},
journal = {Physical Review Accelerators and Beams},
number = 2,
volume = 20,
place = {United States},
year = {2017},
month = {2}
}

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Electron Beam Brightness and Undulator Radiation Brilliance for a Laser Plasma Acceleration Based Free Electron Laser
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